NOVA "Mystery of the Megavolcano" on WXXI-TV

NOVA "Mystery of the Megavolcano" on WXXI-TV

Tue, 05/25/2010 - 8:00pm

Visualization of Toba eruption

Credit: Courtesy of Darkside Animation

The Toba eruption during the Ice Age may have helped kick the climate into a freeze and perhaps pushed ancestral human populations to the brink of extinction.

A remote lake in Southeast Asia conceals evidence of Earth's greatest volcanic cataclysm of the last 100,000 years. Miles beneath its placid surface lies a magma chamber that exploded so violently during the Ice Age that gases and ash may have encircled the globe and blotted out the sun for years on end. The Toba eruption may have helped kick the climate into an unprecedented freeze and perhaps even pushed ancestral human populations to the brink of extinction. In a classic science detective story, NOVA pieces together the clues about this great catastrophe and probes questions about human evolution and Earth's fragile ecosystems.

NOVA "Mystery of the Megavolcano" airs Tuesday, May 25 at 8 p.m. on WXXI-TV (DT21.1/cable1011 and 11).

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA programs demystify science and technology, and highlight the people involved in scientific pursuits.

This program is offered with Descriptive Video (DVi), which provides concise descriptions of the sets, scenery, costumes, action, and other important visual elements between the dialogue of the program.

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